What is the algebraic equation of 13n + 7 = 5n - 20?

2010-01-06 8:16 am

回答 (7)

2010-01-06 8:29 am
✔ 最佳答案
13n + 7 = 5n - 20
13n - 5n = -7 - 20
8n = -27
n = -27/8 (-3.375)
2010-01-06 4:20 pm
I presume you want this solved for n.

The equation is 13n+7 = 5n-20

Then 8n = -27

==> n = -27/8
2010-01-06 4:40 pm
13n + 7 = 5n - 20
13n-5n=-20-7
8n=-27
n=-27/8
2010-01-06 4:29 pm
13n + 7 = 5n - 20
-5n - 7 = -5n -7
---------------------------
8n = -27
/8 = /8
---------------------------
n = -27/8 = -3.375
2010-01-06 4:24 pm
n = -27/8
2010-01-06 4:25 pm
wow! that's an easy way to get answers for homework, huh?
2010-01-06 4:20 pm
8 n = - 27

n = - 27 / 8


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